本文给出了Γ-半群的Green's的一种等价刻画,讨论了(左,右)单Γ-半群的某些性质,刻画了Γ-半群的极小(左,右)Γ-理想和极大(左......

Objective: To study early results of hand made fresh (autologous/homologous) pericardial valved conduit in achieving rig......